forked from luck/tmp_suning_uos_patched
2262054e74
What's worse than no comment? A wrong comment. Several PCMCIA device drivers contained the same comments, which were based on how the PCMCIA subsystem worked in the old days of 2.4., and which were originally part of a "dummy_cs" driver. These comments no longer matched at all what is happening now, and therefore should be removed. Tested-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
237 lines
6.6 KiB
C
237 lines
6.6 KiB
C
/*======================================================================
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Aironet driver for 4500 and 4800 series cards
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This code is released under both the GPL version 2 and BSD licenses.
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Either license may be used. The respective licenses are found at
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the end of this file.
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This code was developed by Benjamin Reed <breed@users.sourceforge.net>
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including portions of which come from the Aironet PC4500
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Developer's Reference Manual and used with permission. Copyright
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(C) 1999 Benjamin Reed. All Rights Reserved. Permission to use
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code in the Developer's manual was granted for this driver by
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Aironet.
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In addition this module was derived from dummy_cs.
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The initial developer of dummy_cs is David A. Hinds
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<dahinds@users.sourceforge.net>. Portions created by David A. Hinds
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are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
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======================================================================*/
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#ifdef __IN_PCMCIA_PACKAGE__
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#include <pcmcia/k_compat.h>
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#endif
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/ptrace.h>
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#include <linux/slab.h>
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#include <linux/string.h>
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#include <linux/timer.h>
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#include <linux/netdevice.h>
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#include <pcmcia/cistpl.h>
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#include <pcmcia/cisreg.h>
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#include <pcmcia/ds.h>
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#include <linux/io.h>
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#include <asm/system.h>
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#include "airo.h"
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/*====================================================================*/
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MODULE_AUTHOR("Benjamin Reed");
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MODULE_DESCRIPTION("Support for Cisco/Aironet 802.11 wireless ethernet "
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"cards. This is the module that links the PCMCIA card "
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"with the airo module.");
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MODULE_LICENSE("Dual BSD/GPL");
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MODULE_SUPPORTED_DEVICE("Aironet 4500, 4800 and Cisco 340 PCMCIA cards");
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/*====================================================================*/
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static int airo_config(struct pcmcia_device *link);
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static void airo_release(struct pcmcia_device *link);
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static void airo_detach(struct pcmcia_device *p_dev);
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typedef struct local_info_t {
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struct net_device *eth_dev;
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} local_info_t;
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static int airo_probe(struct pcmcia_device *p_dev)
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{
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local_info_t *local;
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dev_dbg(&p_dev->dev, "airo_attach()\n");
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/* Allocate space for private device-specific data */
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local = kzalloc(sizeof(local_info_t), GFP_KERNEL);
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if (!local) {
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printk(KERN_ERR "airo_cs: no memory for new device\n");
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return -ENOMEM;
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}
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p_dev->priv = local;
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return airo_config(p_dev);
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} /* airo_attach */
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static void airo_detach(struct pcmcia_device *link)
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{
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dev_dbg(&link->dev, "airo_detach\n");
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airo_release(link);
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if (((local_info_t *)link->priv)->eth_dev) {
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stop_airo_card(((local_info_t *)link->priv)->eth_dev, 0);
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}
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((local_info_t *)link->priv)->eth_dev = NULL;
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kfree(link->priv);
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} /* airo_detach */
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static int airo_cs_config_check(struct pcmcia_device *p_dev, void *priv_data)
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{
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if (p_dev->config_index == 0)
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return -EINVAL;
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return pcmcia_request_io(p_dev);
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}
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static int airo_config(struct pcmcia_device *link)
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{
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local_info_t *dev;
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int ret;
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dev = link->priv;
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dev_dbg(&link->dev, "airo_config\n");
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link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_VPP |
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CONF_AUTO_AUDIO | CONF_AUTO_SET_IO;
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ret = pcmcia_loop_config(link, airo_cs_config_check, NULL);
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if (ret)
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goto failed;
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if (!link->irq)
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goto failed;
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ret = pcmcia_enable_device(link);
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if (ret)
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goto failed;
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((local_info_t *)link->priv)->eth_dev =
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init_airo_card(link->irq,
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link->resource[0]->start, 1, &link->dev);
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if (!((local_info_t *)link->priv)->eth_dev)
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goto failed;
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return 0;
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failed:
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airo_release(link);
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return -ENODEV;
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} /* airo_config */
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static void airo_release(struct pcmcia_device *link)
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{
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dev_dbg(&link->dev, "airo_release\n");
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pcmcia_disable_device(link);
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}
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static int airo_suspend(struct pcmcia_device *link)
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{
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local_info_t *local = link->priv;
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netif_device_detach(local->eth_dev);
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return 0;
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}
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static int airo_resume(struct pcmcia_device *link)
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{
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local_info_t *local = link->priv;
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if (link->open) {
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reset_airo_card(local->eth_dev);
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netif_device_attach(local->eth_dev);
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}
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return 0;
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}
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static struct pcmcia_device_id airo_ids[] = {
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PCMCIA_DEVICE_MANF_CARD(0x015f, 0x000a),
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PCMCIA_DEVICE_MANF_CARD(0x015f, 0x0005),
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PCMCIA_DEVICE_MANF_CARD(0x015f, 0x0007),
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PCMCIA_DEVICE_MANF_CARD(0x0105, 0x0007),
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PCMCIA_DEVICE_NULL,
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};
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MODULE_DEVICE_TABLE(pcmcia, airo_ids);
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static struct pcmcia_driver airo_driver = {
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.owner = THIS_MODULE,
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.name = "airo_cs",
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.probe = airo_probe,
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.remove = airo_detach,
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.id_table = airo_ids,
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.suspend = airo_suspend,
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.resume = airo_resume,
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};
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static int __init airo_cs_init(void)
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{
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return pcmcia_register_driver(&airo_driver);
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}
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static void __exit airo_cs_cleanup(void)
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{
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pcmcia_unregister_driver(&airo_driver);
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}
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/*
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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In addition:
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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3. The name of the author may not be used to endorse or promote
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products derived from this software without specific prior written
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permission.
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THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
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INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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*/
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module_init(airo_cs_init);
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module_exit(airo_cs_cleanup);
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